Patent US2987756A successfully refreshed from Google Patents.
US2987756A
Expired / Lapsed
US
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Adjustable retainer for folding door pivot pin
Assignee: McKinney Manufacturing Co
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Filing: 1958-09-22
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Granted: 1961-06-13
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Expires: 1978-09-22
Abstract
No abstract record available.
Inventors
- 👤 Hollansworth Mcferrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:58
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/26; E05D15/264; E05D15/266; E05D7/00; E05D7/04; E05D7/0415; E05D7/0423; E05D7/08; E05D7/081; E05Y; E05Y2900/00; E05Y2900/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |